These are all a bit hard to find.
died Alston district under various spellings.
Cannot find Petro
Basilio Corsi Jun quarter 1908
Maria Orella Dec quarter 1911
Maurigio or Mairizio Burgener or Burghener Mar quarter 1913 - aged 54 not 45
A Guiseppe Orella, a 18 year old lead miner from Italy, is in Nenthead in the 1911 census - could he perhaps be a son of Maria?
https://familysearch.org/ark:/61903/1:1:X7KY-R73http://vieillemontagnehistory.com/genealogy/ - here a 'Galbentio Corsi' of Italy is mentioned - obviously he can't be the same as Basilio as his suggested dates in Nenthead are around 1913-1915 but perhaps a relative?
Also "Moritz Burgener" died in an accident in 1913 aged 54 - must be your man.
This website also says that some of the Italian miners were recruited from Macugnaga in Italy so you may expect that this would be the first place to look for them.